<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <input type="text" v-model="inputTxt">
    {{ inputTxt }}
    <input type="checkbox" v-model="isChecked">
    {{ isChecked }}
    <hr>
    <input type="checkbox" value="秃驴" v-model="arr"> 
    <input type="checkbox" value="蜘蛛精" v-model="arr"> 
    <input type="checkbox" value="猪" v-model="arr"> 
    {{ arr }}
    <hr>
    <select v-model="sltValue">
      <option value="bsk">篮球</option>
      <option value="ftb">足球</option>
      <option value="ppb">乒乓球</option>
    </select>
    {{sltValue}}
  </div>
  <script src="./vue.js"></script>
  <script>
    const vm = new Vue({
      el: '#app',
      data: {
        inputTxt: "我是初始值",
        isChecked:true,
        arr:[],
        sltValue:""
      }
    })
  </script>
</body>
</html>